@charset "UTF-8";
@font-face {
  font-family: "Oppo Sans";
  src: url(../fonts/OPPOSans4.0-VF.ttf) format("truetype");
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
}
:root {
  --clr-blue-100: #1969df;
  --clr-blue-500: #162d79;
  --clr-slate-50: #f6f7fa;
  --clr-slate-100: #e2e2e4;
  --clr-slate-700: #424349;
  --clr-slate-900: #161618;
  --clr-white: #ffffff;
  --clr-black: #000000;
  --primary: var(--clr-blue-500);
  --text-primary-color: var(--clr-slate-900);
  --main-bg: var(--clr-white);
  --text-nav-color: var(--clr-slate-900);
  --text-nav-hover-color: var(--clr-blue-500);
  --text-nav-sub-color: var(--clr-slate-700);
  --icon-button-hover: var(--primary);
  --top-color: #1a6be0;
  --bottom-color: #59b0fe;
  /* txt */
  --ltr-space-default: 0.08em;
  --line-height-default: 1.8;
  --line-height-hdr: 1.4;
  --line-height-none: 1;
  --font-family: "Oppo Sans";
  --transit-default: all 0.4s ease-out;
  --transit-default-fast: all 0.2s ease-out;
}

html {
  font-size: 16px;
  overflow-y: scroll;
  overflow-x: hidden;
  scroll-behavior: smooth;
}
@media screen and (min-width: 48em) and (max-width: 67.5em) {
  html {
    overflow-y: auto;
    overflow-x: auto;
  }
}
@media screen and (max-width: 47.9375em) {
  html {
    font-size: min(3.7333333333vw, 0.875rem);
  }
}

body {
  font-family: var(--font-family);
  line-height: var(--line-height-default);
  color: var(--text-primary-color);
  height: 100%;
  word-break: break-word;
  background-color: var(--main-bg);
}
@media screen and (max-width: 47.9375em) {
  body {
    -webkit-text-size-adjust: none;
  }
}

* {
  margin: 0;
  padding: 0;
}

ul,
ol {
  list-style: none;
}

a,
a:where([href="javascript:void(0);"]):hover {
  color: var(--text-primary-color);
  text-decoration: none;
  transition: var(--transit-default);
  outline: none;
}

a:where([href="javascript:void(0);"]),
a:where([href="javascript:void(0);"])::before {
  color: inherit;
  cursor: default;
  opacity: 1;
  text-decoration: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

a:focus {
  text-decoration: none !important;
}

@media print, screen and (min-width: 48em) {
  a[href^="tel:"] {
    pointer-events: none;
  }
}

img {
  vertical-align: middle;
}
@media screen and (max-width: 47.9375em) {
  img {
    max-width: 100%;
    height: auto;
  }
}

address,
em,
i {
  font-style: normal;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: var(--line-height-hdr);
}

svg {
  transition: var(--transit-default);
}
svg[preserveAspectRatio=none] {
  height: auto;
}

img {
  max-inline-size: 100%;
  block-size: auto;
}

.section-title {
  font-size: clamp(1.5rem, 1.136rem + 1.55vw, 3rem);
  font-weight: normal;
  text-align: center;
  margin-bottom: 2rem;
}

.section-title-small {
  font-size: clamp(1.6rem, 1.136rem + 1.55vw, 2.4rem);
  font-weight: normal;
  text-align: center;
}

button.learn-more {
  position: relative;
  display: flex;
  justify-content: flex-end;
  cursor: pointer;
  outline: none;
  border: 0;
  text-decoration: none;
  background: transparent;
  padding: 0;
  width: 8.25rem;
  height: auto;
  z-index: 9;
  isolation: isolate;
  margin-block-start: 1.5rem;
}
button.learn-more .circle {
  transition: all 0.45s cubic-bezier(0.65, 0, 0.076, 1);
  position: relative;
  display: inline-block;
  width: 2.125rem;
  height: 2.125rem;
  background: var(--clr-white);
  border-radius: 50vw;
}
button.learn-more .circle .icon {
  transition: all 0.45s cubic-bezier(0.65, 0, 0.076, 1);
  position: absolute;
  top: 0;
  bottom: 0;
  margin: auto;
  background: var(--icon-button-hover);
  color: var(--icon-button-hover);
}
button.learn-more .circle .icon.arrow {
  transition: all 0.45s cubic-bezier(0.65, 0, 0.076, 1);
  right: 0.8125rem;
  height: 2px;
}
button.learn-more .circle .icon.arrow::before {
  position: absolute;
  content: "";
  top: -4px;
  right: 0px;
  width: 8px;
  height: 8px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
}
button.learn-more .button-text {
  transition: all 0.45s cubic-bezier(0.65, 0, 0.076, 1);
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  padding-block-start: 0.375rem;
  color: var(--clr-white);
  line-height: 1.6;
  text-align: center;
  text-transform: uppercase;
  z-index: 9;
  font-size: 0.875rem;
}
button.learn-more:hover .circle {
  width: 100%;
}
button.learn-more:hover .circle .icon.arrow {
  background: var(--clr-white);
  transform: translate(-0.375rem, 0);
}
button.learn-more:hover .button-text {
  color: var(--text-nav-color);
  left: 1rem;
}

#load {
  position: fixed;
  width: 100%;
  height: 100%;
  background: #ffffff;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
  overflow: hidden;
}
#load.hide {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
#load .loader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}
#load .logo-svg {
  width: 7.5rem;
  object-fit: contain;
  aspect-ratio: 2/1;
  display: block;
  height: auto;
}
#load .wave-back {
  animation: wave-flow 3s linear infinite;
  opacity: 0.5;
}
#load .wave-front {
  animation: wave-flow 4s linear infinite;
}
#load #waterLevel {
  transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
#load .loading-text {
  margin-block-start: 1rem;
  font-size: 1rem;
  color: var(--text-nav-sub-color);
  font-variant-numeric: tabular-nums;
  letter-spacing: 2px;
  display: none;
}

body.no-scroll {
  overflow: hidden;
  height: 100svh;
}

/* 顶部导航栏 */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all 0.4s;
}
@media print, screen and (min-width: 67.5625em) {
  header.scrolled-up {
    background-color: hsla(0, 0%, 100%, 0.7);
    box-shadow: 0 5px 15px rgba(var(--clr-black), 0.1);
    backdrop-filter: blur(40px);
  }
  header.has-submenu-hover {
    background-color: var(--clr-white);
  }
  header.has-submenu-hover .header-container .main-nav .main-menu > li > a, header.scrolled-up .header-container .main-nav .main-menu > li > a {
    color: var(--text-nav-color);
  }
  header.has-submenu-hover .logo a svg, header.scrolled-up .logo a svg {
    fill: var(--primary);
  }
  header.has-submenu-hover .main-nav .logo_text svg, header.scrolled-up .main-nav .logo_text svg {
    fill: var(--primary);
  }
}
@media screen and (max-width: 67.5em) {
  header.scrolled {
    background-color: #fff;
  }
  header.scrolled .header-container .main-nav .main-menu > li > a {
    color: var(--clr-white);
  }
  header.scrolled .logo a svg {
    fill: var(--primary);
  }
  header.scrolled .main-nav .logo_text svg {
    fill: var(--primary);
  }
  header.scrolled #menu-toggle {
    color: var(--primary);
  }
}
header .header-container {
  display: flex;
  align-items: center;
  padding-inline: 4rem;
  position: relative;
  column-gap: 4rem;
}
@media screen and (max-width: 67.5em) {
  header .header-container {
    padding-inline: 3rem;
    height: 5rem;
  }
}
@media screen and (max-width: 47.9375em) {
  header .header-container {
    padding-inline: 1.5rem;
  }
}
header .logo {
  display: flex;
  align-items: center;
  z-index: 99;
}
header .logo a svg {
  display: block;
  width: 147px;
  fill: var(--clr-white);
  transition: all 0.4s;
}

.main-nav {
  display: flex;
  justify-content: space-between;
  flex-basis: 100%;
  height: inherit;
}
.main-nav .main-menu {
  display: flex;
  height: inherit;
}
.main-nav .main-menu > li {
  position: static;
  height: inherit;
}
.main-nav .main-menu > li > a {
  display: flex;
  padding-inline: 2rem;
  text-decoration: none;
  color: var(--clr-white);
  transition: color 0.2s;
  white-space: nowrap;
  position: relative;
  font-size: 0.875rem;
  height: inherit;
  align-items: center;
  overflow: hidden;
  padding-block-start: 1rem;
}
.main-nav .main-menu > li > a > span {
  position: relative;
  display: inline-block;
  padding: 0;
  transition: transform 0.3s;
  transform-origin: 50% 0;
  transform-style: preserve-3d;
  line-height: 5rem;
}
.main-nav .main-menu > li > a > span:before {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 100%;
  content: attr(data-hover);
  transition: color 0.3s;
  transform: rotateX(-90deg);
  transform-origin: 50% 0;
  text-align: center;
}
@media (hover: hover) {
  .main-nav .main-menu > li > a:hover, .main-nav .main-menu > li > a.active {
    color: var(--text-nav-hover-color) !important;
  }
  .main-nav .main-menu > li > a:hover span, .main-nav .main-menu > li > a.active span {
    transform: rotateX(90deg) translateY(-12px);
  }
}
.main-nav .main-menu > li.has-submenu.current > a {
  color: var(--primary) !important;
  font-weight: 500;
}
.main-nav .main-menu > li.has-submenu.current > a::after {
  transform: rotate(315deg);
}
.main-nav .main-menu > li.has-submenu > a:after {
  content: "";
  position: absolute;
  right: 18px;
  top: 56%;
  transform: translateY(-50%) rotate(135deg);
  display: inline-block;
  width: 5px;
  height: 5px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transition: transform 0.3s;
}
.main-nav .main-menu > li .submenu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--main-bg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.1);
  z-index: 2;
  padding-inline: 4.5rem;
  padding-block: 2.5rem;
  display: flex;
}
.main-nav .main-menu > li .submenu-cover {
  width: 23.25rem;
  aspect-ratio: 3/2;
  overflow: hidden;
  object-fit: cover;
  flex-shrink: 1;
  position: relative;
}
.main-nav .main-menu > li .submenu-cover img {
  width: 100%;
  display: block;
  border-radius: 4px;
}
.main-nav .main-menu > li .submenu-link {
  margin-inline-start: 15rem;
  flex: auto;
  display: flex;
  flex-direction: row;
}
.main-nav .main-menu > li .submenu-link dl {
  min-width: 13.75rem;
}
.main-nav .main-menu > li .submenu-link dl:nth-child(2) {
  margin-inline-start: -0.375rem;
}
.main-nav .main-menu > li .submenu-link dl:nth-child(3) {
  margin-inline-start: 1.125rem;
}
.main-nav .main-menu > li .submenu-link dl dt {
  font-size: 1rem;
  margin-bottom: 16px;
  font-weight: 500;
}
.main-nav .main-menu > li .submenu-link dl dd a {
  display: block;
  color: var(--text-nav-sub-color);
  font-size: 0.875rem;
  line-height: 2.3;
  transition: all 0.5s ease-in-out;
  position: relative;
}
.main-nav .main-menu > li .submenu-link dl dd a::before {
  content: attr(data-item);
  transition: 0.5s;
  color: currentColor;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  width: 0;
  overflow: hidden;
}
.main-nav .main-menu > li .submenu-link dl dd a:hover {
  color: var(--primary);
}
.main-nav .main-menu > li .submenu-link dl dd a:hover::before {
  width: 100%;
  transition: all 0.5s ease-in-out;
}
.main-nav .main-menu > li:hover .submenu, .main-nav .main-menu > li:focus-within .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(-1px);
}
.main-nav .logo_text {
  position: relative;
  display: flex;
  align-items: center;
}
.main-nav .logo_text::before {
  content: "";
  width: 1px;
  height: 18px;
  background-color: hsl(0, 0%, 50%);
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  display: none;
}
.main-nav .logo_text svg {
  width: 70px;
  fill: var(--clr-white);
  margin-block-start: 0.7rem;
}

/* 菜单按钮 */
#menu-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  position: absolute;
  right: 0.75rem;
  cursor: pointer;
  z-index: 1100;
  color: #fff;
}
#menu-toggle .menu-icon {
  position: absolute;
  top: 61%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 24px;
  height: 2px;
  background-color: currentColor;
  transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
#menu-toggle .menu-icon:before, #menu-toggle .menu-icon:after {
  content: "";
  position: absolute;
  width: 24px;
  height: 2px;
  background-color: currentColor;
  transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  left: 0;
}
#menu-toggle .menu-icon:before {
  top: -8px;
}
#menu-toggle .menu-icon:after {
  bottom: -8px;
}
#menu-toggle.active .menu-icon {
  background-color: transparent;
}
#menu-toggle.active .menu-icon:before {
  transform: translateY(8px) rotate(45deg);
}
#menu-toggle.active .menu-icon:after {
  transform: translateY(-8px) rotate(-45deg);
}

/* 遮罩层 */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  box-shadow: 0 5px 15px rgba(var(--clr-black), 0.1);
  background-color: hsla(0, 0%, 100%, 0.1);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s;
}
.overlay.active {
  opacity: 1;
  visibility: visible;
}

.hero {
  height: 100vh;
  width: 100%;
  overflow: hidden;
  position: relative;
  z-index: 5;
}
.hero .bx-wrapper,
.hero .bx-wrapper .bx-viewport {
  width: 100% !important;
  height: 100% !important;
  border: none;
}
.hero ul {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}
.hero ul li {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.hero ul li .img_box {
  width: 100%;
  height: 100vh;
  transform: scale(1.05);
  transition: 10s 0.1s;
  position: relative;
}
.hero ul li .img_box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero ul li.on .img_box {
  transform: scale(1) rotate(0.001deg);
}
.hero .bx-controls {
  position: absolute;
  z-index: 100;
  left: 50%;
  bottom: 5%;
  display: inline-flex;
  width: auto;
  padding: 0 64px;
  transform: translate(-50%, -50%);
}
@media (width < 40rem) {
  .hero .bx-controls {
    padding: 0 32px;
    bottom: 3%;
  }
}
.hero .bx-controls > div {
  display: inline-block;
  width: auto;
  position: static !important;
}
.hero .bx-wrapper .bx-controls-direction a {
  width: 12px;
  height: 20px;
  margin-top: -12px;
}
.hero .bx-wrapper .bx-controls-direction .bx-prev {
  background: url(../images/main_s1_prev.png) no-repeat center;
}
.hero .bx-wrapper .bx-controls-direction .bx-next {
  background: url(../images/main_s1_next.png) no-repeat center;
}
.hero .bx-wrapper .bx-controls-auto a {
  background: none;
}
.hero .bx-wrapper .bx-controls-auto .bx-start {
  display: inline-block;
  position: relative;
  transform: translateY(-2px);
  text-indent: -9999px;
  outline: 0;
  margin: 0 12px;
}
.hero .bx-wrapper .bx-controls-auto .bx-start.active {
  display: none;
}
.hero .bx-wrapper .bx-controls-auto .bx-stop {
  display: inline-block;
  text-indent: -9999px;
  position: relative;
  transform: translateY(-2px);
  outline: 0;
  margin: 0px 12px;
}
.hero .bx-wrapper .bx-controls-auto .bx-stop.active {
  display: none;
}
.hero .bx-wrapper .bx-pager.bx-default-pager a {
  box-sizing: border-box;
  position: relative;
  background: 0;
  text-indent: -9999px;
  display: block;
  width: 7px;
  height: 7px;
  top: 0;
  margin: 0 10px;
  outline: 0;
  border-radius: 50%;
  background: #fff !important;
}
.hero .bx-wrapper .bx-pager.bx-default-pager a:hover {
  background: #fff !important;
}
.hero .bx-wrapper .bx-pager.bx-default-pager a.active {
  border: 3px solid #fff;
  background: transparent !important;
  width: 12px;
  height: 12px;
}
.hero .bx-wrapper .bx-pager.bx-default-pager .bx-pager-item:before {
  display: none;
}
.hero .bx-wrapper .bx-controls.bx-has-controls-auto.bx-has-pager .bx-pager {
  width: auto;
  display: inline-block;
  padding-top: 0;
}
.hero .bx-wrapper .bx-pager-item {
  vertical-align: middle;
}
.hero .bx-wrapper .bx-pager-item a:hover {
  color: #fff;
}

.brand-banner {
  position: relative;
  background-repeat: no-repeat;
  background-position: center bottom;
  background-size: cover;
  width: 100%;
  height: 86vh;
  display: flex;
  justify-content: center;
  align-items: center;
}
.brand-banner .logo-en-text {
  fill: var(--clr-white);
  width: 21.25rem;
}
.brand-banner.case-banner {
  background-position: center -60px;
}
@media screen and (max-width: 47.9375em) {
  .brand-banner {
    height: 50vh;
  }
  .brand-banner .logo-en-text {
    width: 16.25rem;
  }
  .brand-banner.case-banner {
    background-position: center bottom !important;
  }
}

.brand-introduce {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  font-size: 1.25rem;
  width: 100%;
  color: #9d9d9e;
  line-height: 1.5;
  text-align: center;
  margin-block: 4.5rem;
  font-weight: 400;
}
.brand-introduce .mask-img {
  margin-bottom: 2rem;
}
.brand-introduce .mask-img img {
  max-width: 100%;
  aspect-ratio: 3/2;
  width: 100%;
}
@media screen and (max-width: 67.5em) {
  .brand-introduce {
    margin-block: 2rem;
    margin-inline: 2rem !important;
    box-sizing: border-box;
    box-sizing: border-box;
    width: auto;
    font-size: 1.0625rem;
  }
}

.brand-inspiration {
  background-color: var(--clr-slate-50);
  padding-block: 5.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  font-weight: 400;
  font-size: 1.25rem;
  color: #9d9d9e;
  line-height: 1.5;
}
.brand-inspiration p {
  text-align: center;
  width: 90vw;
}
.brand-inspiration .inspiration-album {
  position: relative;
  width: 100%;
  margin-block: 5.5rem;
}
@media screen and (max-width: 47.9375em) {
  .brand-inspiration .inspiration-album {
    margin-block: 3rem;
  }
}
.brand-inspiration .inspiration-album .inspiration-slider {
  display: grid;
  justify-content: center;
  grid-template-columns: repeat(auto-fill, minmax(25%, 1fr));
  padding-inline: 4rem;
  row-gap: 2.4rem;
}
@media screen and (max-width: 67.5em) {
  .brand-inspiration .inspiration-album .inspiration-slider {
    grid-template-columns: none !important;
    width: 100%;
    display: block !important;
  }
}
.brand-inspiration .inspiration-album .inspiration-slider li {
  aspect-ratio: 3/2;
  overflow: hidden;
  display: block;
}
.brand-inspiration .inspiration-album .inspiration-slider li img {
  width: 100%;
  object-fit: fill;
  max-width: 100%;
  transform: scale(1);
  transition: transform 0.7s cubic-bezier(0.85, 0, 0.15, 1);
}
.brand-inspiration .inspiration-album .inspiration-slider li:hover img {
  transform: scale(1.1);
}
.brand-inspiration .inspiration-album .brand-logo {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
@media screen and (max-width: 47.9375em) {
  .brand-inspiration .inspiration-album .brand-logo {
    display: none;
  }
}
.brand-inspiration .inspiration-album .brand-logo svg {
  width: 280px;
  fill: white;
}
.brand-inspiration .inspiration-album .bx-wrapper {
  border: none;
  box-shadow: none;
  margin: 0;
  padding: 0;
}
.brand-inspiration .inspiration-album .bx-wrapper img {
  width: 100%;
}
.brand-inspiration .inspiration-album .bx-wrapper .bx-pager {
  padding-top: 0;
  bottom: -20px;
}
.brand-inspiration .inspiration-album .bx-wrapper .bx-pager.bx-pager.bx-default-pager a {
  width: 7px;
  height: 7px;
}
.brand-inspiration .inspiration-album .bx-wrapper .bx-pager.bx-pager.bx-default-pager a.active {
  background-color: var(--primary);
  width: 14px;
}
@media screen and (max-width: 67.5em) {
  .brand-inspiration {
    padding-block: 2rem;
    margin-inline: auto;
    font-size: 1.0625rem;
  }
  .brand-inspiration .section-title {
    font-size: 1.0625rem;
    font-weight: bold;
  }
}

.technology-wrapper {
  padding-block: 5.5rem;
  margin-inline: 4.5rem;
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(12, 1fr);
  position: relative;
}
@media screen and (max-width: 47.9375em) {
  .technology-wrapper {
    display: flex;
    flex-direction: column;
    margin-inline: 1.5rem;
    padding-block: 2.5rem;
  }
}
.technology-wrapper .technology-introduce {
  grid-area: 1/2/2/6;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 60vh;
  align-self: flex-start;
  transition: all 0.35s ease-in-out;
  position: sticky;
  top: 0;
}
@media print, screen and (max-width: 85.375em) and (min-width: 48em) {
  .technology-wrapper .technology-introduce {
    grid-area: 1/1/2/6;
  }
}
@media screen and (max-width: 47.9375em) {
  .technology-wrapper .technology-introduce {
    min-height: auto;
    position: initial;
    margin-bottom: 2rem;
  }
  .technology-wrapper .technology-introduce .summary {
    margin-bottom: 3rem;
  }
}
.technology-wrapper .technology-introduce .summary .section-title {
  text-align: left;
}
.technology-wrapper .technology-introduce .summary p {
  font-weight: lighter;
  font-size: 1.25rem;
  color: var(--text-primary-color);
  line-height: 2;
}
.technology-wrapper .technology-introduce .certification h4 {
  font-size: 1.25rem;
  font-weight: bold;
}
.technology-wrapper .technology-introduce .certification ul {
  margin-block-start: 2rem;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.technology-wrapper .technology-introduce .certification ul li img {
  height: 42px;
  object-fit: fill;
  flex-grow: 1;
}
.technology-wrapper .technology-thumb {
  grid-area: 1/7/2/13;
}
.technology-wrapper .technology-thumb ul {
  display: flex;
  flex-direction: column;
  row-gap: 3rem;
}
@media screen and (max-width: 47.9375em) {
  .technology-wrapper .technology-thumb ul {
    row-gap: 1.5rem;
  }
}
.technology-wrapper .technology-thumb ul li img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.products-introduce {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-inline-start: 8vw;
  padding-inline-end: 5vw;
  flex-direction: column;
  color: var(--clr-white);
  font-size: 1rem;
  text-align: center;
}
.products-introduce h2.section-title {
  font-size: clamp(1.5rem, 1.068rem + 0.78vw, 2rem);
  margin-bottom: 0;
  font-weight: bold;
  margin-block-start: 2rem;
}
@media screen and (max-width: 47.9375em) {
  .products-introduce h2.section-title {
    margin-block-end: 1rem;
  }
}
.products-introduce p {
  line-height: 1.5555555556;
  font-weight: lighter;
  font-weight: 400;
}
.products-introduce .feature {
  font-weight: lighter;
  font-size: 1rem;
  text-align: center;
  margin-block-start: 2rem;
  font-weight: 400;
}
.products-introduce .feature span {
  display: block;
  font-weight: bold;
}
.products-introduce .feature .list-ul {
  list-style-type: disc;
  list-style-position: inside;
  margin-top: 3rem;
}
.products-introduce .weights {
  margin-block: 1.5rem;
  font-size: 1.125rem;
  display: flex;
  column-gap: 2rem;
}
.products-introduce .weights span:not(:last-child)::after {
  content: "|";
  display: inline-block;
  margin-inline-start: 2rem;
}
.products-introduce .certification {
  display: flex;
  column-gap: 1rem;
}
.products-introduce .certification li img {
  height: 2.25rem;
  object-fit: contain;
}

.products {
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}
.products .products-inner {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-column-gap: 24px;
  width: 100%;
  height: inherit;
}
.products .products-inner .cover-img {
  grid-area: 1/1/2/13;
}
.products .products-inner .cover-img img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  height: 100%;
}
.products .products-inner .products-introduce {
  background-color: var(--productBG);
  height: inherit;
  isolation: isolate;
  grid-area: 1/8/2/13;
}
@media print, screen and (max-width: 85.375em) and (min-width: 48em) {
  .products .products-inner .products-introduce {
    grid-area: 1/7/2/13;
  }
}
.products .products-inner .thumbnial {
  grid-area: 1/6/2/9;
  isolation: isolate;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  height: inherit;
}
@media print, screen and (max-width: 85.375em) and (min-width: 48em) {
  .products .products-inner .thumbnial {
    grid-area: 1/5/2/8;
  }
}
.products .products-inner .thumbnial:hover img {
  transform: translateY(-10px);
}
.products .products-inner .thumbnial img {
  width: clamp(14rem, 13.786rem + 5.178vw, 17rem);
  display: block;
  object-fit: contain;
  transform: translateY(0px);
  transition: transform 0.35s ease-in-out;
}
@media print, screen and (max-width: 47.9375em) {
  .products .products-inner {
    justify-content: space-evenly;
    grid-template-rows: repeat(16, minmax(0, 1fr));
    grid-template-columns: 1fr !important;
    grid-column-gap: 0;
    height: 100vh;
  }
  .products .products-inner .products-introduce {
    padding-block-start: 10vh !important;
    justify-content: flex-start;
    z-index: 1;
    height: auto !important;
    background-image: linear-gradient(to top, var(--top-color), var(--bottom-color)) !important;
    grid-area: 8/1/17/2;
  }
  .products .products-inner .products-introduce .feature,
  .products .products-inner .products-introduce .weights,
  .products .products-inner .products-introduce .certification,
  .products .products-inner .products-introduce .samll-tit {
    display: none !important;
  }
  .products .products-inner .products-introduce .learn-more {
    margin-block-start: 3rem;
  }
  .products .products-inner .cover-img {
    grid-area: 1/1/8/2;
    inset: 0;
    z-index: 0;
  }
  .products .products-inner .thumbnial {
    justify-content: center !important;
    grid-area: 4/1/10/2;
    height: auto;
    align-items: center;
  }
  .products .products-inner .thumbnial img {
    width: 39vw !important;
    max-width: 12.5rem;
    min-width: 7.5rem;
  }
}

.foot {
  background-color: var(--main-bg);
  position: relative;
  margin-block: 2rem;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: 4rem;
}
@media screen and (max-width: 67.5em) {
  .foot {
    padding-inline: 2rem;
    flex-direction: column;
  }
  .foot .copyright {
    margin-block-end: 1.5rem;
  }
}
.foot .copyright {
  text-align: center;
  color: var(--text-nav-sub-color);
}
.foot .foot-media {
  display: flex;
  column-gap: 1.5rem;
}
@media screen and (max-width: 47.9375em) {
  .foot .foot-media {
    display: flex;
    align-items: center;
    width: 100%;
    justify-content: center;
  }
}
.foot .foot-media > .item {
  position: relative;
}
@media screen and (max-width: 47.9375em) {
  .foot .foot-media > .item {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
}
.foot .foot-media > .item a img {
  width: 2rem;
}
.foot .foot-media > .item .code-box {
  width: 100px;
  height: 125px;
  position: absolute;
  top: -125px;
  left: 50%;
  border-radius: 3px;
  background-color: var(--clr-white);
  box-sizing: border-box;
  text-align: center;
  transform: translateX(-50%) scale(0);
  transform-origin: bottom center;
  transition: all 0.4s cubic-bezier(1, 0, 0.4, 1);
  box-shadow: rgba(0, 0, 0, 0.1) 0px 0px 10px;
  padding: 8px;
}
@media screen and (max-width: 47.9375em) {
  .foot .foot-media > .item .code-box {
    transform: translateX(-50%) scale(1);
    position: relative;
    top: initial;
    left: initial;
    transform: none;
    display: none;
  }
}
.foot .foot-media > .item .code-box > img {
  width: 100%;
  display: block;
}
.foot .foot-media > .item .code-box > span {
  color: var(--text-nav-sub-color);
  font-size: 0.875rem;
}
.foot .foot-media > .item .code-box:after {
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid #fff;
  content: "";
  display: block;
  position: absolute;
  left: 50%;
  bottom: -6px;
  transform: translateX(-50%);
}
@media screen and (max-width: 47.9375em) {
  .foot .foot-media > .item .code-box:after {
    display: none;
  }
}
@media print, screen and (min-width: 67.5625em) {
  .foot .foot-media > .item:hover .code-box {
    top: -135px;
    transition: all 0.4s cubic-bezier(1, 0, 0.4, 1.7);
    transform: translateX(-50%) scale(1);
  }
}

.animline {
  inline-size: 100%;
  position: absolute;
  left: 0;
  transform: translateY(calc(-240px + 100vh));
  z-index: 2;
}
@media screen and (max-width: 47.9375em) {
  .animline {
    transform: translateY(0);
    bottom: 17.5rem;
  }
}
.animline .line {
  stroke-dasharray: 800;
  animation: svg-wave 10s linear infinite;
  animation-fill-mode: backwards;
  fill: none;
  stroke: var(--clr-white);
  stroke-width: 2;
  stroke-miterlimit: 8;
  -webkit-transition: stroke 6s ease;
  transition: stroke 6s ease;
  stroke-linecap: round;
}
.animline .line:nth-child(1) {
  transform: translateY(0);
  bottom: 17.5rem;
}
.animline .line:nth-child(2) {
  animation-duration: 2s;
  animation-delay: 4s;
}
.animline .line:nth-child(3) {
  animation-duration: 4s;
  animation-delay: 3s;
}

.product-mask {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-image: linear-gradient(to bottom, var(--top-color), var(--bottom-color));
  z-index: 1001;
  display: none;
  isolation: isolate;
}
.product-mask .inner {
  display: flex;
  align-items: center;
  width: inherit;
  height: inherit;
  padding: 80px 5vw;
  margin: 0 auto;
  position: relative;
  box-sizing: border-box;
}
.product-mask .product-show {
  position: relative;
  width: clamp(25rem, 12.5rem + 26.04vw, 43.75rem);
  height: 100%;
  flex-shrink: 0;
}
@media screen and (max-width: 47.9375em) {
  .product-mask .product-show {
    width: 100%;
    height: auto !important;
  }
  .product-mask .product-show .imgwrap {
    height: inherit;
  }
}
.product-mask .product-show .imgwrap {
  height: 100%;
  margin: 0 auto;
  /* width: 414px; */
  overflow: hidden;
  display: flex;
  align-items: center;
}
.product-mask .product-show .imgwrap video {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 16/10;
  border-radius: 8px;
}
.product-mask .product-info {
  height: 100%;
  display: flex;
  overflow-y: scroll;
  padding-inline-start: 5vw;
  --sb-track-color: #fff;
  --sb-thumb-color: #000;
  --sb-size: 0px;
}
.product-mask .product-info::-webkit-scrollbar {
  width: var(--sb-size);
}
.product-mask .product-info::-webkit-scrollbar-track {
  background: var(--sb-track-color);
  border-radius: 10px;
}
.product-mask .product-info::-webkit-scrollbar-thumb {
  background: var(--sb-thumb-color);
  border-radius: 10px;
  border: 2px solid #ffffff;
}
@supports not selector(::-webkit-scrollbar) {
  .product-mask .product-info .product-info {
    scrollbar-color: var(--sb-thumb-color) var(--sb-track-color);
  }
}
.product-mask .product-info .introduce {
  color: #fff;
}
.product-mask .product-info .introduce h2.section-title {
  font-size: clamp(1.5rem, 1.068rem + 0.78vw, 2rem);
  margin-bottom: 0;
  font-weight: bold;
  margin-block-start: 2rem;
}
@media screen and (max-width: 47.9375em) {
  .product-mask .product-info .introduce h2.section-title {
    margin-block-end: 1rem;
  }
}
.product-mask .product-info .introduce p {
  line-height: 1.5555555556;
  font-weight: lighter;
  font-weight: 400;
}
.product-mask .product-info .introduce .feature {
  font-weight: lighter;
  font-size: 1rem;
  margin-block-start: 2rem;
  font-weight: 400;
}
.product-mask .product-info .introduce .feature span {
  display: block;
  font-weight: bold;
}
.product-mask .product-info .introduce .feature .list-ul {
  list-style-type: disc;
  list-style-position: inside;
  margin-top: 3rem;
}
.product-mask .product-info .imgView-swiper {
  width: 100%;
  aspect-ratio: 650/560;
  border-radius: 15px;
  margin-bottom: 2rem;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-mask .product-info .imgView-swiper .swiper-slide img {
  max-height: 100%;
  height: 100%;
  object-fit: contain;
  aspect-ratio: 3/2;
  max-width: 100%;
}
.product-mask .product-info .product-swiper {
  position: relative;
}
.product-mask .product-info .product-swiper .swiper {
  width: 100%;
  position: static;
  height: 5.5rem;
}
.product-mask .product-info .product-swiper .swiper-wrapper {
  justify-content: center;
}
.product-mask .product-info .product-swiper .swiper-slide {
  overflow: hidden;
  position: relative;
  aspect-ratio: 3/2;
  box-sizing: border-box;
  cursor: pointer;
  border: 1px solid transparent;
  padding: 0.5rem;
}
.product-mask .product-info .product-swiper .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.product-mask .product-info .product-swiper .swiper-slide-thumb-active {
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 8px;
}
@media screen and (max-width: 47.9375em) {
  .product-mask .product-info {
    width: 100%;
    height: auto !important;
    padding-inline-start: 0;
    overflow: visible;
  }
  .product-mask .product-info .introduce .feature {
    margin-block-start: 1rem;
    line-height: 1.4;
  }
  .product-mask .product-info .introduce .section-title {
    font-size: 1.125rem;
  }
  .product-mask .inner {
    flex-direction: column;
    overflow-y: scroll;
    height: 100vh;
    overflow-x: hidden;
  }
}

.case-list {
  max-width: 56.25rem;
  margin-inline: auto;
}
.case-list li {
  margin-block-start: 4.5rem;
  margin-block-end: 8rem;
  color: #9d9d9e;
}
.case-list li:hover .cover-image img {
  transform: scale(1.1);
}
.case-list .cover-image {
  overflow: hidden;
}
.case-list .cover-image img {
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 16/10;
  transform: scale(1);
  transition: transform 0.7s cubic-bezier(0.85, 0, 0.15, 1);
}
.case-list .tit {
  font-size: clamp(1.25rem, 1.068rem + 0.78vw, 1.8rem);
  text-align: center;
  color: var(--text-primary-color);
  font-weight: 500;
  margin-block-start: 2rem;
  margin-block-end: 1.5rem;
  color: inherit;
}
.case-list p {
  color: var(--text-nav-sub-color);
  font-size: 1.125rem;
  color: inherit;
  font-weight: 400;
  line-height: 1.5;
}
@media screen and (max-width: 67.5em) {
  .case-list {
    padding-inline: 4rem;
  }
  .case-list li {
    margin-block: 3rem !important;
  }
}
@media screen and (max-width: 47.9375em) {
  .case-list {
    padding-inline: 2rem;
    margin-block: 2rem !important;
  }
  .case-list p {
    font-size: 1.0625rem;
  }
}

.service-wrapper {
  max-width: 56.25rem;
  margin-inline: auto;
}
.service-wrapper .brand-logo {
  fill: #9d9d9e;
  width: 13.75rem;
  margin-block-start: 8.5rem;
  margin-block-end: 6rem;
  margin-inline: auto;
  display: flex;
  align-items: center;
}
.service-wrapper .service-item {
  margin-block-end: 8rem;
  color: #9d9d9e;
}
.service-wrapper .service-item h2 {
  font-size: clamp(1.25rem, 1.068rem + 0.78vw, 1.8rem);
  text-align: center;
  font-weight: 500;
  margin-block: 2rem;
}
.service-wrapper .service-item h6 {
  font-weight: 500;
  font-size: 1.125rem;
  margin-block-end: 1.5rem;
}
.service-wrapper .service-item p {
  font-weight: 400;
  font-size: 1.125rem;
  margin-block-end: 2rem;
  line-height: 1.5;
}
.service-wrapper .service-item .thumb {
  overflow: hidden;
  text-align: center;
}
.service-wrapper .service-item .thumb img {
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 16/10;
  margin: auto;
}
.service-wrapper .service-item .thumb-icon {
  margin-block-start: 4rem;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
}
.service-wrapper .service-item .thumb-icon li img {
  height: 6rem;
  object-fit: fill;
  flex-grow: 1;
}
.service-wrapper .service-item .thumb-list {
  display: grid;
  grid-column-gap: 1.5rem;
  grid-row-gap: 1.5rem;
  grid-template-columns: repeat(2, 1fr);
  height: auto;
}
.service-wrapper .service-item .thumb-list li {
  overflow: hidden;
}
.service-wrapper .service-item .thumb-list li img {
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 16/10;
  margin: auto;
}
.service-wrapper .service-item .thumb-list li:nth-child(1) {
  grid-area: 1/1/2/3;
}
.service-wrapper .service-item .thumb-list li:nth-child(2) {
  grid-area: 2/1/3/2;
}
.service-wrapper .service-item .thumb-list li:nth-child(3) {
  grid-area: 2/2/3/3;
}
.service-wrapper .service-item .list-type {
  list-style-type: disc;
  list-style-position: inside;
}
.service-wrapper .service-item .list-type li {
  font-size: 1.125rem;
  font-weight: 400;
  font-weight: 300;
  margin-block: 1.5rem;
  line-height: 1.5;
}
.service-wrapper .service-item img {
  transform: scale(1);
  transition: transform 0.7s cubic-bezier(0.85, 0, 0.15, 1);
  display: block;
  transform-origin: center center;
}
.service-wrapper .service-item img:hover {
  transform: scale(1.1);
}
@media screen and (max-width: 67.5em) {
  .service-wrapper {
    padding-inline: 2rem;
  }
  .service-wrapper .brand-logo {
    margin-block: 4rem !important;
    width:160px;
  }
  .service-wrapper .service-item {
    margin-block-end: 3rem;
  }
  .service-wrapper .service-item p {
    font-size: 1.0625rem;
  }
  .service-wrapper .service-item .list-type li {
    font-size: 1.0625rem;
  }
  .service-wrapper .service-item .thumb-icon {
    flex-wrap: nowrap;
    margin-block-start: 1rem;
  }
  .service-wrapper .service-item .thumb-icon li img {
    height: auto;
  }
}

.contact-container {
  padding-block: 8rem;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  font-weight: lighter;
  font-size: 1.25rem;
  color: var(--text-primary-color);
}
.contact-container .section-title-small {
  margin-bottom: 8rem;
}
.contact-container .section-title-small span {
  font-size: 1.625rem;
  display: block;
}
.contact-container p {
  text-align: center;
  width: 90vw;
  margin-block: 1rem;
  font-weight: 400;
  color: #9d9d9e;
}
.contact-container p a {
  color: inherit;
}
@media screen and (max-width: 67.5em) {
  .contact-container {
    padding-block: 2rem;
    margin-inline: auto;
    font-size: 1.0625rem;
  }
  .contact-container .section-title-small {
    margin-bottom: 4rem;
  }
}

.foot-logo {
  display: flex;
  justify-content: center;
  margin-inline: auto;
  margin-bottom: 8rem;
}
@media screen and (max-width: 67.5em) {
  .foot-logo {
    margin-bottom: 2rem;
  }
  .foot-logo svg {
    width: 7.5rem !important;
  }
}
.foot-logo svg {
  width: 10rem;
  object-fit: contain;
  aspect-ratio: 2/1;
  fill: var(--primary);
  display: block;
}

.close-box {
  position: fixed;
  height: 70px;
  inset: 0;
  z-index: 9;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.close-box .close-btn {
  width: 2rem;
  height: 2rem;
  position: relative;
  transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  color: var(--clr-white);
  z-index: 9;
  cursor: pointer;
  margin-inline-end: 1rem;
}
.close-box .close-btn:before, .close-box .close-btn:after {
  content: "";
  position: absolute;
  width: inherit;
  height: 2px;
  background-color: currentColor;
  transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
.close-box .close-btn:before {
  top: 1rem;
  transform: translateY(0px) rotate(45deg);
}
.close-box .close-btn:after {
  bottom: 0.875rem;
  transform: translateY(0px) rotate(-45deg);
}

@keyframes svg-wave {
  0% {
    stroke-dashoffset: 1800;
    stroke-width: 0.8;
    stroke-opacity: 0;
  }
  50% {
    stroke-width: 1.8;
    stroke-opacity: 0.7;
  }
  100% {
    stroke-dashoffset: 800;
    stroke-width: 0;
    stroke-opacity: 0;
  }
  @media screen and (max-width: 47.9375em) {
    @keyframes svg-wave {
      0% {
        stroke-dashoffset: 1800;
        stroke-width: 12;
        stroke-opacity: 0;
      }
      50% {
        stroke-width: 8;
        stroke-opacity: 0.7;
      }
      100% {
        stroke-dashoffset: 600;
        stroke-width: 12;
        stroke-opacity: 0;
      }
    }
  }
}
/* 响应式设置 */
@media print, screen and (max-width: 67.5em) {
  .main-nav {
    position: fixed;
    top: -100vh;
    right: 0%;
    left: 0;
    width: 100%;
    height: 100vh;
    background-image: linear-gradient(to bottom, var(--primary), var(--clr-blue-100));
    z-index: 10;
    flex-direction: column;
    align-items: flex-start;
    padding: 5rem 3rem 3rem;
    transition: top 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    overflow-y: auto;
    box-sizing: border-box;
    justify-content: space-between;
  }
}
@media screen and (max-width: 67.5em) and (max-width: 47.9375em) {
  .main-nav {
    padding: 5rem 1.5rem 3rem;
  }
}
@media print, screen and (max-width: 67.5em) {
  .main-nav.active {
    top: 0;
  }
  .main-nav .main-menu {
    flex-direction: column;
    width: 100%;
    margin-block-end: 2rem;
  }
  .main-nav .main-menu > li {
    width: 100%;
    height: initial;
    /* 移动端箭头调整 */
  }
  .main-nav .main-menu > li.has-submenu.active > a {
    color: var(--clr-white);
  }
  .main-nav .main-menu > li > a {
    padding: 24px 0;
    border-bottom: rgba(255, 255, 255, 0.1) 1px solid;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    color: var(--clr-white);
    font-size: 1.125rem;
  }
  .main-nav .main-menu > li > a > span {
    line-height: initial;
  }
  .main-nav .main-menu > li > a:hover {
    color: var(--clr-white);
  }
  .main-nav .main-menu > li > a:hover > span {
    color: var(--clr-white);
  }
  .main-nav .main-menu > li.has-submenu.active > a:after {
    transform: rotate(315deg);
    color: var(--clr-white);
  }
  .main-nav .main-menu > li .submenu {
    position: static;
    box-shadow: none;
    background-color: transparent;
    margin-top: 5px;
    max-height: 0;
    overflow: hidden;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: max-height 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    padding-block: 0;
    padding-inline: 0;
    box-sizing: border-box;
  }
  .main-nav .main-menu > li .submenu-cover {
    display: none;
  }
  .main-nav .main-menu > li .submenu-link {
    margin-left: 0;
    grid-template-columns: auto;
    flex-direction: column;
  }
  .main-nav .main-menu > li .submenu-link dl {
    min-width: auto;
    margin-bottom: 1rem;
  }
  .main-nav .main-menu > li .submenu-link dl:nth-child(2) {
    margin-inline-start: 0;
  }
  .main-nav .main-menu > li .submenu-link dl:nth-child(3) {
    margin-inline-start: 0;
  }
  .main-nav .main-menu > li .submenu-link dl dt {
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.125rem;
  }
  .main-nav .main-menu > li .submenu-link dl dd a {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.5);
  }
  .main-nav .main-menu > li.active .submenu {
    max-height: 500px;
  }
  .main-nav .logo_text {
    padding-left: 0;
    margin-left: 0;
    margin-inline: auto;
  }
  .main-nav .logo_text::before {
    display: none;
  }
  .main-nav .nav-buttons {
    flex-direction: column;
    width: 100%;
  }
  .main-nav .nav-buttons .nav-btn {
    width: 100%;
    margin-left: 0;
    margin-bottom: 15px;
    text-align: center;
  }
  #menu-toggle {
    display: block;
  }
}
@keyframes loading {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@keyframes fadeOut {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
/* 波浪水平流动动画 */
@keyframes wave-flow {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-200px);
  } /* 移动一个波长的距离 */
}